Located in the North Kivu province, Masisi territory, Ngungu group, sector of bahemba and locality of Kaseke, the sector is typical of vegetation dominated by grassy savannahs with the main crops: cereals (corn), tubers (cassava, potato, sweet potato), rugged geomorphology containing plateaus dotted with a few hills and mountains and an average hydrographic network. The Ngungu-Rufufu sector is in Kibaro-Burundi. It is located near the lower Kibarian and abounds in metamorphic formations such as schists, phyllites, quartzo-phyllites, various quartzite alternations, granites, etc. Structurally, these formations are oriented NE-SW in the form of a folded chain having undergone shearing with, however, frequent virgations towards the NW. These virgations are much more observed at the west of Lake Kivu and in Maniema. The lower Kibarian was affected by granitic rocks of various types of age 950-1000 Ma, by pegmatite and by various basic rocks, mainly gabbros, diorites and dolerites. At Ngungu-Rufufu, the following lithologies have been identified: Talc sericite Schist, Quartz mica schist, quartzite, pegmatite, kaolinite, granite and «greisen» explained by the absence of feldspar. The Mineralization in the lower Kibarian is associated with acid magmatism mainly in Granite G4, dated at 976 Ma. This granite forms the last member of Kibarian magmatic events. It is red leucogranite with muscovite, tourmaline and garnet. In this regard, our study area is characterized by the mineralization of Sn, Ta and Nb in the pegmatitic and granitic rock, at the Center and the South-West of the sector. The Wolfram (W) and Gold (Au) mineralization is much more pronounced in the quartz vein. The reconnaissance methods used are the geological and topographical survey, Sampling of stream sediments, Cartography of the Galleries which would serve as simulation in the trench study and the Pitting or Wells. Finally, an assessment of tonnage was made according mineral grade.